Mixed detonation system for shock wave ash removal

Abstract

A mixed detonation system for shock wave ash removal comprises a mixing device and a detonation device. The mixing equipment comprises an air flow control device, a gas flow control device, an air-gas mixer, a first gas alarm and the like, and is provided with an air inlet, a gas inlet and a mixed gas outlet; the detonation equipment comprises a mixed gas branching device, a branching ignition detonation device, a pollution discharge manual ball valve, an electronic igniter, a second gas alarm and the like, and is provided with a mixed gas inlet and a detonation branching outlet; the air inlet is connected with an air source through an air pipeline, the fuel gas inlet is connected with a fuel gas source through a fuel gas pipeline, the mixed gas outlet is connected with the mixed gas inlet through a mixed gas pipeline, and the detonation branch outlets are connected with inlets of the branch shock wave generators through detonation pipelines. According to the shock wave ash removal system, the deflagration efficiency and strength of shock wave ash removal are greatly improved, and the pipeline material cost and the pipeline installation work amount of the shock wave ash removal system are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler shock wave dust cleaners, in particular to a mixed detonation system for shock wave dust cleaning. Background Art

[0002] Shock wave cleaning technology has been widely used in cleaning the dust accumulation on the heating surfaces of medium and large boiler heat exchangers. The existing shock wave cleaning systems are composed of air and gas supply equipment, air and gas mixing ignition equipment, and shock wave generators. Due to the large size of the medium and large boiler space, the various heating surfaces that need to be cleaned are distributed at different locations with a large distance in the boiler space. The existing shock wave cleaning system requires very long air and gas pipelines to be installed and distributed to the air inlet and gas inlet of the air and gas mixing ignition equipment on the corresponding platforms of each heating surface. Then, the air and gas are mixed and ignited and deflagrated to form a shock wave flow to the shock wave generator to which it is connected and ejected through its shock wave nozzle to complete the cleaning of each heating surface. The existing shock wave cleaning system has the problems of large pipeline installation engineering and high pipeline material cost. In addition, due to the short air and gas mixing path and space, the uniformity of the mixed gas is not ideal, which often causes problems such as low or limited deflagration shock wave efficiency and intensity. In order to solve the problems and shortcomings of the prior art, the utility model provides a hybrid detonation system for shock wave cleaning, which not only greatly improves the efficiency and strength of the deflagration shock wave of the shock wave cleaning system, but also greatly reduces the pipeline material cost and pipeline installation engineering workload of the shock wave cleaning system. Utility Model Content

[0003] In order to solve the problems and shortcomings of the existing shock wave cleaning system, the utility model provides a hybrid deflagration system for shock wave cleaning. The technical solution adopted by the utility model is:

[0004] A mixed detonation system for shock wave dust cleaning, the mixed detonation system comprising: a mixing device, a detonation device; the mixing device comprising: an air flow control device, a gas flow control device, an air-gas mixer, a first gas alarm, and a first control junction box; the mixing device is provided with an air inlet, a gas inlet, and a mixed gas outlet; the air inlet is the inlet of the air flow control device, the gas inlet is the inlet of the gas flow control device, the mixed gas outlet is the outlet of the air-gas mixer, the outlet of the air flow control device is connected to the air inlet of the air-gas mixer, and the outlet of the gas flow control device is connected to the gas inlet of the air-gas mixer; the detonation device The equipment includes: a mixture gas splitter, a branch ignition and deflagration device, a manual sewage ball valve, an electronic igniter, a second gas alarm, and a second control junction box. The detonation device is provided with a mixture gas inlet and a deflagration branch outlet. The mixture gas inlet is the inlet of the mixture gas splitter, and the deflagration branch outlet is the branch outlet of the branch ignition and deflagration device. The branch outlet of the mixture gas splitter is connected to the branch inlet of the branch ignition and deflagration device; the air inlet is connected to the air source through an air pipeline, the gas inlet is connected to the gas source through a gas pipeline, the mixture gas outlet is connected to the mixture gas inlet through a mixture gas pipeline, and the deflagration branch outlet is connected to the inlet of each branch shock wave generator through a deflagration pipeline.

[0005] In the above scheme, there is one mixing device, 1 to 10 detonating devices, and 4 to 160 shock wave generators.

[0006] In the above scheme, the air flow control device is provided with a first manual ball valve, a filter pressure reducer, a third manual ball valve, an air flow meter, a fifth manual ball valve, a first electric contact pressure gauge, a manual stop valve, a series connection of double normally open solenoid valves, and a first check valve in sequence; the gas flow control device is provided with a second manual ball valve, a first Y-type filter, a fourth manual ball valve, a gas flow meter, a sixth manual ball valve, a second electric contact pressure gauge, a manual needle valve, a series connection of double normally closed solenoid valves, a second check valve, and a first flame arrester in sequence; the inlet of the third manual ball valve is connected to the outlet of the fifth manual ball valve and connected to the seventh manual ball valve; the inlet of the fourth manual ball valve is connected to the outlet of the sixth manual ball valve and connected to the eighth manual ball valve; the air-gas mixer is a seamless steel pipe tank body or a stainless steel pipe tank body with an internal tube hole structure, and the air-gas mixer is provided with a first over-temperature detector.

[0007] In the above scheme, the mixed gas splitter is provided with a ninth manual ball valve, a second Y-type filter, a pressure gauge, 2 to 8 non-letter-shaped branch outlets, and a drain outlet in sequence, and the drain manual ball valve is installed on the drain outlet at the bottom of the mixed gas splitter; the branch ignition and deflagration device is provided with a tenth manual ball valve, a normally open solenoid valve, a third check valve, a second flame arrester, and an ignition tank in sequence, and an inserted ignition rod (head), a second over-temperature detector, and a dud detector are installed on the ignition tank. The electronic igniter controls the ignition of the ignition rod (head), and the ignition tank is a seamless steel tube tank body or a stainless steel tube tank body with an internal plate hole structure.

[0008] In the above scheme, the air source is compressed air of 0.3MPa~1.6MPa, and the gas source is acetylene or natural gas or methane or liquefied petroleum gas of 0.05MPa~0.15MPa; the air pipeline is a seamless steel pipe of DN20 or DN25, the gas pipeline is a seamless steel pipe of DN15 or DN20, the mixed gas pipeline is a seamless steel pipe of DN20 or DN25, and the deflagration pipeline is a seamless steel pipe of DN32 or DN40.

[0009] In the above scheme, there are 1 to 6 detonation devices and 4 to 96 shock wave generators.

[0010] In the above scheme, the range of the air flow meter is 0~100Nm 3 / h, the range of the gas flow meter is 0~10Nm 3 / h, the flow meter is a float flow meter or a pressure differential flow meter or a mass flow meter; the ignition rod (head) is a semiconductor ignition rod or an electrode type spark plug, the check valve is a piston check valve or a baffle check valve, the flame arrester is a metal mesh flame arrester or a porous plate flame arrester; the over-temperature detector is a temperature control switch or a temperature sensor, and the dud detector is a pressure control switch or a pressure sensor or a sound / vibration control switch.

[0011] In the above scheme, the air source is 0.5MPa~1.0MPa compressed air, and the gas source is 0.08MPa~0.12MPa acetylene; the air pipeline is a DN20 seamless steel pipe, the gas pipeline is a DN15 seamless steel pipe, the mixed gas pipeline is a DN20 seamless steel pipe, and the deflagration pipeline is a DN40 seamless steel pipe.

[0012] In the above scheme, the flowmeter is a float flowmeter, and the float flowmeter is a glass rotor flowmeter; the ignition rod (head) is an electrode type spark plug, the check valve is a piston type check valve, and the flame arrester is a metal mesh flame arrester; the over-temperature detector is a temperature control switch, and the dud detector is a pressure control switch.

[0013] Compared with the prior art, the technical solution adopted by the utility model has the following beneficial effects:

[0014] 1. The hybrid detonation system of the utility model improves the efficiency of the deflagration shock wave of shock wave cleaning, that is, the efficiency of the deflagration shock wave of effective cleaning, by more than 20%, and the deflagration intensity by about 10%;

[0015] 2. The installation cost of the complete machine of the shock wave dust cleaning system using the hybrid detonation system of the utility model is reduced by 20% to 40% compared with the piping material cost of the complete machine of the existing shock wave dust cleaning system;

[0016] 3. The installation of the shock wave dust cleaning system using the hybrid detonation system of the utility model reduces the pipeline installation work by 10% to 20% compared with the existing shock wave dust cleaning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of a hybrid detonation system for shock wave dust cleaning according to the utility model;

[0018] Figure 2 It is a schematic diagram of a mixing device of a mixed detonation system of the utility model;

[0019] Figure 3 It is a schematic diagram of the detonation equipment of the hybrid detonation system of the utility model.

[0020] Reference numerals

[0021] 1-mixing device, 2-detonation device, 3-shock wave generator, 101-air inlet, 102-gas inlet, 103-mixed gas outlet, 104-air flow control device, 105-gas flow control device, 106-air and gas mixer, 107-first over-temperature detector, 108-first gas alarm, 109-first control junction box, 201-mixed gas inlet, 202-explosion branch outlet, 203-mixed gas branch outlet device, 204-branch ignition and deflagration device, 205-electronic igniter, 206-second gas alarm, 207-second control junction box, 301-shock tank, 302-shock nozzle, 1040-first manual ball valve, 1041-filter pressure reducer, 1042-third manual ball valve, 1043-air flow meter, 1044-fifth manual ball valve, 1045-seventh manual ball valve, 1046-first electric contact pressure gauge, 1047 -Manual stop valve, 1048-double normally open solenoid valve, 1049-first check valve, 1050-second manual ball valve, 1051-first Y-type filter, 1052-fourth manual ball valve, 1053-gas flow meter, 1054-sixth manual ball valve, 1055-eighth manual ball valve, 1056-second electric contact pressure gauge, 1057-manual needle valve, 1058-double normally closed solenoid valve, 1059-second check valve, 1060- The first flame arrester, 2030-the ninth manual ball valve, 2031-the second Y-type filter, 2032-pressure gauge, 2033-non-letter-shaped branch outlet, 2034-sewage manual ball valve, 2040-the tenth manual ball valve, 2041-normally open solenoid valve, 2042-the third check valve, 2043-the second flame arrester, 2044-ignition tank, 2045-ignition rod (head), 2046-the second over-temperature detector, 2047-dud detector. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] A mixed detonation system for shock wave dust cleaning, comprising: a mixing device 1, a detonation device 2; the mixing device 1 comprises: an air flow control device 104, a gas flow control device 105, an air-gas mixer 106, a first gas alarm 108, and a first control junction box 109, the mixing device 1 is provided with an air inlet 101, a gas inlet 102, and a mixed gas outlet 103, the air inlet 101 is the inlet of the air flow control device 104, the gas inlet 102 is the inlet of the gas flow control device 105, the mixed gas outlet 103 is the outlet of the air-gas mixer 106, the outlet of the air flow control device 104 is connected to the air inlet of the air-gas mixer 106, and the outlet of the gas flow control device 105 is connected to the gas inlet of the air-gas mixer 106; the detonation device 2 comprises: a mixing device 104, a gas flow control device 105, an air-gas mixer 106, a gas alarm 108, and a first control junction box 109, the mixing device 1 is provided with an air inlet 101, a gas inlet 102, and a mixed gas outlet 103, the air inlet 101 is the inlet of the air flow control device 104, the gas inlet 102 is the inlet of the gas flow control device 105, the mixed gas outlet 103 is the outlet of the air-gas mixer 106, the outlet of the air flow control device 104 is connected to the air inlet of the air-gas mixer 106, and the outlet of the gas flow control device 105 is connected to the gas inlet of the air-gas mixer 106; A gas splitter 203, a branch ignition and deflagration device 204, a manual sewage ball valve 2034, an electronic igniter 205, a second gas alarm 206, and a second control junction box 207. The detonation device 2 is provided with a mixture gas inlet 201 and a deflagration branch outlet 202. The mixture gas inlet 201 is the inlet of the mixture gas splitter 203, and the deflagration branch outlet 202 is the branch outlet of the branch ignition and deflagration device 204. The branch outlet of the mixture gas splitter 203 is connected to the branch inlet of the branch ignition and deflagration device 204; the air inlet 101 is connected to the air source through an air pipeline, the gas inlet 102 is connected to the gas source through a gas pipeline, the mixture gas outlet 103 is connected to the mixture gas inlet 201 through a mixture gas pipeline, and the deflagration branch outlet 202 is connected to the inlet of each branch shock wave generator 3 through a deflagration pipeline. The number of the mixing device 1 is 1, the number of the detonating devices 2 is 1 to 10, preferably 1 to 6, and the number of the shock wave generators 3 is 4 to 160, preferably 4 to 96. The first control junction box 109 is responsible for the control connection of the electrical components in the mixing device 1, and each second control junction box 207 is responsible for the control connection of the electrical components in each detonating device 2.

[0024] The air flow control device 104 is provided with a first manual ball valve 1040, a filter pressure reducer 1041, a third manual ball valve 1042, an air flow meter 1043, a fifth manual ball valve 1044, a first electric contact pressure gauge 1046, a manual stop valve 1047, a series double normally open solenoid valve 1048, and a first check valve 1049 in sequence, and the gas flow control device 105 is provided with a second manual ball valve 1050, a first Y-type filter 1051, a fourth manual ball valve 1052, a gas flow meter 1053, a sixth manual ball valve 1054, a second electric contact pressure gauge 1046, a manual stop valve 1047, a series double normally open solenoid valve 1048, and a first check valve 1049 in sequence. 056, a manual needle valve 1057, a series-connected double normally closed solenoid valve 1058, a second check valve 1059, a first flame arrester 1060, the inlet of the third manual ball valve 1042 to the outlet of the fifth manual ball valve 1044 and connected to the seventh manual ball valve 1045, the inlet of the fourth manual ball valve 1052 to the outlet of the sixth manual ball valve 1054 and connected to the eighth manual ball valve 1055; the air-gas mixer 106 is a seamless steel tube tank body or a stainless steel tube tank body with an internal tube hole structure, preferably a seamless steel tube tank body, and the air-gas mixer 106 is provided with a first over-temperature detector 107.

[0025] The mixed gas splitter 203 is provided with a ninth manual ball valve 2030, a second Y-type filter 2031, a pressure gauge 2032, 2 to 8 non-letter-shaped branch outlets 2033, and a sewage outlet in sequence. The sewage manual ball valve 2034 is installed on the sewage outlet at the bottom of the mixed gas splitter 203; the branch ignition and deflagration device 204 is provided with a tenth manual ball valve 2040, a normally open solenoid valve 2041, a third check valve 2042, a second flame arrester 2043, and an ignition tank 2044 in sequence. The ignition tank 2044 is installed with an inserted ignition rod (head) 2045, a second over-temperature detector 2046, and a dud detector 2047. The electronic igniter 205 controls the ignition of the ignition rod (head) 2045. The ignition tank 2044 is a seamless steel tube tank body or a stainless steel tube tank body with an internal plate hole structure, preferably a seamless steel tube tank body.

[0026] In the above scheme, the air source is compressed air of 0.3MPa~1.6Mpa, preferably 0.5MPa~1.0MPa, and the gas source is acetylene or natural gas or methane or liquefied petroleum gas of 0.05MPa~0.15Mpa, preferably 0.08MPa~0.12MPa, preferably acetylene; the air pipeline is a seamless steel pipe of DN20 or DN25, preferably DN20, the gas pipeline is a seamless steel pipe of DN15 or DN20, preferably DN15, the mixed gas pipeline is a seamless steel pipe of DN20 or DN25, preferably DN20, and the deflagration pipeline is a seamless steel pipe of DN32 or DN40, preferably DN40.

[0027] In the above scheme, the range of the air flow meter 1043 is 0~100Nm 3 / h, the range of gas flow meter 1053 is 0~10Nm 3 / h, the flowmeter is a float flowmeter or a differential pressure flowmeter or a mass flowmeter, preferably a float flowmeter, and the float flowmeter is preferably a glass rotor flowmeter; the ignition rod (head) 2045 is a semiconductor ignition rod or an electrode type spark plug, preferably an electrode type spark plug, the check valve is a piston check valve or a baffle check valve, preferably a piston check valve, the flame arrester is a metal mesh flame arrester or a porous plate flame arrester, preferably a metal mesh flame arrester; the over-temperature detector is a temperature control switch or a temperature sensor, preferably a temperature control switch, and the dud detector 2047 is a pressure control switch or a pressure sensor or a sound / vibration control switch, preferably a pressure control switch. Specific embodiments

[0029] A mixed detonation system suitable for most medium and large shock wave dust cleaning systems, the mixed detonation system comprising: a mixing device 1, six detonation devices 2; the mixing device 1 comprising: an air flow control device 104, a gas flow control device 105, an air-gas mixer 106, a first gas alarm 108, a first control junction box 109, the mixing device 1 is provided with an air inlet 101, a gas inlet 102, and a mixed gas outlet 103; the air inlet 101 is the inlet of the air flow control device 104, the gas inlet 102 is the inlet of the gas flow control device 105, the mixed gas outlet 103 is the outlet of the air-gas mixer 106, the outlet of the air flow control device 104 is connected to the air inlet of the air-gas mixer 106, and the outlet of the gas flow control device 105 is connected to the gas inlet of the air-gas mixer 106; the detonation device 2 comprises: a mixed gas splitter 203 , branch ignition and deflagration device 204, manual sewage ball valve 2034, electronic igniter 205, second gas alarm 206, second control junction box 207, the detonation device 2 is provided with a mixture inlet 201 and a deflagration branch outlet 202; the mixture inlet 201 is the inlet of the mixture splitter 203, the deflagration branch outlet 202 is the branch outlet of the branch ignition and deflagration device 204, the branch outlet of the mixture splitter 203 is connected to the branch inlet of the branch ignition and deflagration device 204; the air inlet 101 is connected to a 0.7MPa compressed air source through a DN20 seamless steel pipe, the gas inlet 102 is connected to a 0.12MPa acetylene source through a DN15 seamless steel pipe, the mixture outlet 103 is connected to the mixture inlet 201 through a DN20 seamless steel pipe, and the deflagration branch outlet 202 is connected to the inlets of two shock wave generators 3 of each branch through a DN40 seamless steel pipe.

[0030] The air flow control device 104 is provided with a first manual ball valve 1040, a filter pressure reducer 1041, a third manual ball valve 1042, and an air flow meter 1043 with a range of 0 to 100 Nm. 3 / h glass rotor flowmeter, the fifth manual ball valve 1044, the first electric contact pressure gauge 1046, the manual stop valve 1047, the series double normally open solenoid valve 1048, the first check valve 1049 is a piston check valve, the gas flow control device 105 is sequentially provided with a second manual ball valve 1050, a first Y-type filter 1051, a fourth manual ball valve 1052, and a gas flow meter 1053 with a range of 0 to 10Nm 3 / h glass rotor flowmeter, the sixth manual ball valve 1054, the second electric contact pressure gauge 1056, the manual needle valve 1057, the series connection of double normally closed solenoid valves 1058, the second check valve 1059 is a piston check valve, the first flame arrester 1060 is a metal mesh flame arrester, the inlet of the third manual ball valve 1042 to the outlet of the fifth manual ball valve 1044 is connected to the seventh manual ball valve 1045, the inlet of the fourth manual ball valve 1052 to the outlet of the sixth manual ball valve 1054 is connected to the eighth manual ball valve 1055; the series connection of double normally open / double normally closed solenoid valves is used to prevent the system from not working properly when a single solenoid valve leaks internally. The air-gas mixer 106 is a seamless steel pipe tank with an internal tube hole structure, and the air-gas mixer 106 is provided with a first over-temperature detector 107 as a temperature control switch. The mixed gas splitter 203 is provided with a ninth manual ball valve 2030, a second Y-type filter 2031, a pressure gauge 2032, six non-letter-shaped branch outlets 2033, and a sewage outlet in sequence, and the sewage manual ball valve 2034 is installed on the sewage outlet at the bottom of the mixed gas splitter 203; the branch ignition and deflagration device 204 is provided with a tenth manual ball valve 2040, a normally open solenoid valve 2041, a third check valve 2042 which is a piston check valve, a second flame arrester 2043 which is a metal mesh flame arrester, and an ignition tank 2044 in sequence, and the ignition tank 2044 is installed with an inserted ignition rod (head) 2045 which is an electrode type spark plug, a second over-temperature detector 2046 which is a temperature control switch, and a dud detector 2047 which is a pressure control switch, and the electronic igniter 205 controls the ignition of the electrode type spark plug, and the ignition tank 2044 is a seamless steel pipe tank body with an internal plate hole structure.

[0031] The following describes the working process, function and beneficial effects of the hybrid detonation system technical solution in detail through the system debugging of the shock wave cleaning system and the specific cleaning process.

[0032] 0.7MPa compressed air enters the mixing device 1 through the air inlet 101, and 0.12MPa acetylene gas enters the mixing device 1 through the gas inlet 102; open the first manual ball valve 1040, adjust the pressure of the filter pressure reducer 1041 to 0.35MPa, open the third manual ball valve 1042, open the fifth manual ball valve 1044, open the ninth manual ball valve 2030 of a mixed gas splitter 203 of the detonation device 2, open the tenth manual ball valve 2040 of a branch ignition and deflagration device 204, slowly turn on the manual stop valve 1047 and adjust the air flow meter 1043 to 50Nm 3 / h; open the second manual ball valve 1050, open the fourth manual ball valve 1052, open the sixth manual ball valve 1054, manually control the series connection of the double normally closed solenoid valve 1058 through the shock wave cleaning system control device, slowly turn on the manual needle valve 1057 and adjust the gas flow meter 1053 to 5Nm 3 / h later, manually control to close the series-connected double normally closed solenoid valve 1058; then, the shock wave cleaning system enters the cleaning operation standby state through the control device, at which time all the solenoid valves of the mixing device 1 and the detonation device 2 are closed, the first gas alarm 108, the first control junction box 109 and the electronic igniter 205, the second gas alarm 206, and the second control junction box 207 are energized, the seventh manual ball valve 1045 and the eighth manual ball valve 1055 are closed, all branch tenth manual ball valves 2040 are open, and all sewage manual ball valves 2034 are closed. The cleaning operation process of the shock wave cleaning system is briefly described as follows:

[0033] According to the cleaning needs of each heating surface of the boiler, the shock wave cleaning parameters are set through the control device, including: cleaning (ignition and deflagration) branch selection, the mixed gas charging time of each branch, the number of ignition and deflagration times, and the purge time. The charging time is achieved by opening and closing the normally open solenoid valve 2041 of each branch; the shock wave cleaning system is started through the control device, and the shock wave cleaning system will automatically complete the cleaning operation of each branch (corresponding to the corresponding parts of each heating surface of the boiler) in sequence according to the set cleaning parameters.

[0034] After the dust cleaning operation is started, the mixed gas after the air and acetylene are fully mixed in the air-gas mixer 106 enters the ignition tank 2044 set as the first dust cleaning branch ignition and deflagration device 204 and is transported to the shock tank 301 of the two shock wave generators 3 of the branch. After the mixed gas charging time set in the branch is reached, the normally open solenoid valve 2041 of the branch is closed, and then the ignition rod (head) 2045 of the branch is ignited to make the mixed gas inside deflagrate and be transmitted through the deflagration branch outlet 202 through the deflagration pipeline to the shock tank 301 of the two shock wave generators 3 connected to the branch and through the shock wave spray Port 302 releases the deflagration shock wave energy to the corresponding heated surface area to complete the cleaning of the heated surface area, and the above process is repeated according to the set number of ignition and deflagration times. After the ignition and deflagration times are completed, the series-connected double normally closed solenoid valves 1058 are closed and the normally open solenoid valve 2041 of the branch is opened to purge the branch. After the set purge time of the branch is reached, the series-connected double normally closed solenoid valves 1058 are opened and the normally open solenoid valve 2041 of the branch is closed; according to the above process, the shock wave cleaning system enters the cleaning operation set as the second cleaning branch, and so on, until the cleaning operation set as the last cleaning branch is completed.

[0035] During the entire cleaning process, once there is a gas leak in the mixing device 1 or the air-gas mixer 106 overheats, the first gas alarm 108 or the first over-temperature detector 107 will alarm, and the shock wave cleaning system will stop running. The cleaning operation can only be resumed after the fault is eliminated. If there is a gas leak in a certain detonation device 2, the second gas alarm 206 in the detonation device 2 will alarm and stop the operation of the detonation device 2; if the second over-temperature detector 2046 or the dud detector 2047 of a certain ignition and deflagration branch of the detonation device 2 gives an alarm, the cleaning operation of the ignition and deflagration branch will be stopped, and the other ignition and deflagration branches of the detonation device 2 will perform their own cleaning operations normally; after the fault is eliminated, the cleaning operation of the corresponding detonation device 2 or ignition and deflagration branch will be resumed.

[0036] The shock wave cleaning system of this embodiment includes a mixing device 1, 6 detonation devices 2, and a total of 36 deflagration branch outlets 202 connected to 72 shock wave generators 3; the beneficial effects of the mixed detonation system of this embodiment on the shock wave cleaning system are:

[0037] 1. The deflagration shock wave efficiency of shock wave cleaning, i.e. the efficiency of effective deflagration shock wave cleaning, is increased by more than 20%, and the deflagration shock wave intensity is increased by about 10%; the explanation is as follows:

[0038] Since the air and gas are first mixed in the air-gas mixer 106 of the mixing device 1 and then transported to the mixed gas inlets 201 of the detonation device 2 through a certain length of the mixed gas pipeline, the mixed gas to be ignited and deflagrated entering each branch ignition tank 2044 is more uniform and stable, so the ignition and deflagration success rate, that is, the deflagration shock wave efficiency and the deflagration shock wave intensity are greatly improved; according to actual measurements, the efficiency of the effective dust cleaning deflagration shock wave is increased by more than 20%, and the deflagration shock wave intensity is increased by about 10%.

[0039] 2. The piping material cost of the shock wave cleaning system is reduced by more than 30% compared with the existing shock wave cleaning system of the same scale. The explanation is as follows:

[0040] According to actual calculation, the piping materials required for the installation of the existing shock wave cleaning system of the same scale as this embodiment are: about 120 meters of DN20 seamless steel pipes for air pipelines, about 120 meters of DN15 seamless steel pipes for gas pipelines, and about 240 meters of DN50 seamless steel pipes for deflagration pipelines; this embodiment only requires about 120 meters of DN20 seamless steel pipes for mixed gas pipelines and about 240 meters of DN40 seamless steel pipes for deflagration pipelines. According to cost accounting, the piping material cost of this embodiment is reduced by more than 30% compared with the installation of the existing shock wave cleaning system of the same scale.

[0041] 3. The installation of the shock wave cleaning system reduces the pipeline installation work by more than 15% compared with the existing shock wave cleaning system of the same scale; the explanation is as follows:

[0042] According to the amount of pipes used in the installation of this embodiment and the existing shock wave cleaning system of the same scale and the difficulty of the corresponding pipe installation, after actual calculation, the amount of pipe installation work in this embodiment is reduced by more than 15% compared with the installation of the existing shock wave cleaning system of the same scale.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by technicians in this field within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A hybrid detonation system for shock wave dust cleaning, characterized in that: The mixed detonation system comprises: a mixing device and a detonation device; the mixing device comprises: an air flow control device, a gas flow control device, an air-gas mixer, a first gas alarm, and a first control junction box; the mixing device is provided with an air inlet, a gas inlet, and a mixed gas outlet; the air inlet is the inlet of the air flow control device, the gas inlet is the inlet of the gas flow control device, the mixed gas outlet is the outlet of the air-gas mixer, the outlet of the air flow control device is connected to the air inlet of the air-gas mixer, and the outlet of the gas flow control device is connected to the gas inlet of the air-gas mixer; the detonation device comprises: a mixed gas distributor; A branch ignition and deflagration device, a manual sewage ball valve, an electronic igniter, a second gas alarm, and a second control junction box. The detonation equipment is provided with a mixture inlet and a deflagration branch outlet. The mixture inlet is the inlet of the mixture branch, and the deflagration branch outlet is the branch outlet of the branch ignition and deflagration device. The branch outlet of the mixture branch is connected to the branch inlet of the branch ignition and deflagration device; the air inlet is connected to the air source through an air pipeline, the gas inlet is connected to the gas source through a gas pipeline, the mixture outlet is connected to the mixture inlet through a mixture pipeline, and the deflagration branch outlet is connected to the inlet of each branch shock wave generator through a deflagration pipeline.

2. The hybrid detonation system according to claim 1, characterized in that: There is one mixing device, 1 to 10 detonating devices, and 4 to 160 shock wave generators.

3. The hybrid detonation system according to claim 1, characterized in that: The air flow control device is provided with a first manual ball valve, a filter pressure reducer, a third manual ball valve, an air flow meter, a fifth manual ball valve, a first electric contact pressure gauge, a manual stop valve, a series connection of double normally open solenoid valves, and a first check valve in sequence; the gas flow control device is provided with a second manual ball valve, a first Y-type filter, a fourth manual ball valve, a gas flow meter, a sixth manual ball valve, a second electric contact pressure gauge, a manual needle valve, a series connection of double normally closed solenoid valves, a second check valve, and a first flame arrester in sequence; the inlet of the third manual ball valve is connected to the outlet of the fifth manual ball valve and connected to the seventh manual ball valve; the inlet of the fourth manual ball valve is connected to the outlet of the sixth manual ball valve and connected to the eighth manual ball valve; the air-gas mixer is a seamless steel pipe tank body or a stainless steel pipe tank body with an internal tube hole structure, and the air-gas mixer is provided with a first over-temperature detector.

4. The hybrid detonation system according to claim 1, characterized in that: The mixed gas splitter is provided with a ninth manual ball valve, a second Y-type filter, a pressure gauge, 2 to 8 non-letter-shaped branch outlets, and a drain outlet in sequence, and the drain manual ball valve is installed on the drain outlet at the bottom of the mixed gas splitter; the branch ignition and deflagration device is provided with a tenth manual ball valve, a normally open solenoid valve, a third check valve, a second flame arrester, and an ignition tank in sequence, and an inserted ignition rod (head), a second over-temperature detector, and a dud detector are installed on the ignition tank. The electronic igniter controls the ignition of the ignition rod (head), and the ignition tank is a seamless steel tube tank body or a stainless steel tube tank body with an internal plate hole structure.

5. The hybrid detonation system according to claim 1, characterized in that: The air source is compressed air of 0.3MPa to 1.6MPa, and the gas source is acetylene or natural gas or methane or liquefied petroleum gas of 0.05MPa to 0.15MPa; the air pipeline is a seamless steel pipe of DN20 or DN25, the gas pipeline is a seamless steel pipe of DN15 or DN20, the mixed gas pipeline is a seamless steel pipe of DN20 or DN25, and the deflagration pipeline is a seamless steel pipe of DN32 or DN40.

6. The hybrid detonation system according to claim 2, characterized in that: The number of the detonation devices is 1 to 6, and the number of the shock wave generators is 4 to 96.

7. The hybrid detonation system according to claim 3 or 4, characterized in that: The air flow meter has a range of 0 to 100 Nm 3 / h, the range of the gas flow meter is 0~10Nm 3 / h, the flow meter is a float flow meter or a pressure differential flow meter or a mass flow meter; the ignition rod (head) is a semiconductor ignition rod or an electrode type spark plug, the check valve is a piston check valve or a baffle check valve, the flame arrester is a metal mesh flame arrester or a porous plate flame arrester; the over-temperature detector is a temperature control switch or a temperature sensor, and the dud detector is a pressure control switch or a pressure sensor or a sound / vibration control switch.

8. The hybrid detonation system according to claim 5, characterized in that: The air source is 0.5MPa~1.0MPa compressed air, and the gas source is 0.08MPa~0.12MPa acetylene; the air pipeline is a DN20 seamless steel pipe, the gas pipeline is a DN15 seamless steel pipe, the mixed gas pipeline is a DN20 seamless steel pipe, and the deflagration pipeline is a DN40 seamless steel pipe.

9. The hybrid detonation system according to claim 7, characterized in that: The flow meter is a float flow meter, which is a glass rotor flow meter; the ignition rod (head) is an electrode type spark plug, the check valve is a piston type check valve, and the flame arrester is a metal mesh flame arrester; the over-temperature detector is a temperature control switch, and the dud detector is a pressure control switch.

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